EP3087347B1 - Remote-distribution of a software update to remote-reading terminals - Google Patents

Remote-distribution of a software update to remote-reading terminals Download PDF

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Publication number
EP3087347B1
EP3087347B1 EP14831016.2A EP14831016A EP3087347B1 EP 3087347 B1 EP3087347 B1 EP 3087347B1 EP 14831016 A EP14831016 A EP 14831016A EP 3087347 B1 EP3087347 B1 EP 3087347B1
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EP
European Patent Office
Prior art keywords
remote
access points
reading
updated
terminals
Prior art date
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Application number
EP14831016.2A
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German (de)
French (fr)
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EP3087347A1 (en
Inventor
Michaël MILLE
Robert LACOSTE
Alexandre VIALLE
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GRDF SA
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GRDF SA
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Priority to PL14831016T priority Critical patent/PL3087347T3/en
Publication of EP3087347A1 publication Critical patent/EP3087347A1/en
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H04L41/0833—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network energy consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/02—Automatically-operated arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/40—Networks; Topology
    • G01D2204/45—Utility meters networked together within a single building
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/40—Networks; Topology
    • G01D2204/47—Methods for determining the topology or arrangement of meters in a network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Definitions

  • the present invention relates to the management of updates in a remote metering installation. It relates more particularly to a method of managing the software update of remote-reading terminals of a remote-reading installation.
  • a remote reading installation conventionally comprises several remote-reading terminals, for example smart meters for water or gas, which can perform a consumption metering but also transmit information from different readings (temperature, pollution, etc.). .
  • the data transmitted by the remote polling terminals transit via access points, usually by radiofrequency link. These access points, then allow the feedback of information at a remote management system management server, to which they are connected via a telecommunications network, for example a network wired or wireless, GPRS or other type.
  • the remote-control terminals are installed on the water, gas or other networks requiring counting and measurements, most of the time for a long period, generally of the order of ten years. To ensure their permanent operation, even when there is no power, these remote-control terminals work with electric accumulators. Also, an important problem is the limitation of their electrical consumption.
  • a remote polling system comprising a plurality of remote polling terminals, and a plurality of access points
  • the updates are generally transmitted at the same time by all the access points, which creates a strong signal. congestion of the radio spectrum and increases the risk of poor reception of update data by the remote polling terminals.
  • the remote-reading terminals of the plurality of remote-reading terminals may be, without limitation, water meters, gas meters, electricity meters, but also sensor monitoring devices, for example. example to monitor sensors for flow rates, temperature, humidity, levels, speed, acoustic sensors, conductivity sensors, turbidity, pH measurement, H2S. These remote-reading terminals may also be, in a non-limiting manner, sensor monitoring devices in housing and tertiary activities, for example monitoring intrusion detection sensors, smoke, carbon monoxide.
  • These remote-reading terminals can also, without limitation, include or be devices for controlling actuators, by example to close valves in case of leak detection.
  • the selection made in step (b) of the set of broadcast access points makes it possible to reduce the size of the radio spectrum during the transmission of update data, which also allows the reduction the risk of poor reception of update data by remote polling terminals.
  • the selection step (b) comprises transmitting a notification message of the selection to each access point of the set of access points selected, the notification message comprising the start time of diffusion.
  • each terminal of the plurality of remote polling terminals to be updated transmits an acknowledgment message to its destination. associated access point, to confirm the schedule for receiving the update data at the start of broadcast time.
  • step (c) of sending update data by the set of access points selected is performed several consecutive times.
  • the step (a) of transmitting the update data reception planning message is carried out, for each remote terminal of the plurality of remote metering terminals (T 1 -T 9 ). to update, following the reception, by its associated access point, of remote reading data transmitted by the remote-reading terminal.
  • a remote metering installation comprises a server 1 for managing the remote metering installation.
  • This management server 1 communicates via a telecommunication network with 3 access points P 1 , P 2 , P 3 of the installation.
  • the management server 1 for example, comprises a network card for communicating with the access points P 1 to P 3 , a microprocessor and an internal memory.
  • These access points P 1 to P 3 comprise, for example, a radiofrequency transmission-reception card and a radio antenna for communicating with remote-service terminals T 1 to T 9 of the installation, a network card for communicating with each other. via the telecommunication network with the management server 1, a microprocessor and an internal memory.
  • the remote polling installation furthermore comprises a plurality of remote polling terminals T 1 to T 9 , in this embodiment 9 remote polling terminals T 1 to T 9 .
  • These remote-reading terminals T 1 to T 9 are, for example, gas consumption metering terminals, installed in gas supply circuits for individual dwellings.
  • the remote-reading terminals T 1 to T 9 comprise, for example, an electric battery, a microprocessor, an internal memory, radiofrequency communication means and means for counting the consumption of gas.
  • the remote-reading terminals T 1 to T 9 communicate, via their radiofrequency communication means, with the access points P 1 to P 3 via a radiofrequency link.
  • the radiofrequency communication means of the remote reading terminals T 1 to T 9 are, from a general point of view, extinguished outside the periods for sending remote polling data, in order to save the electric battery. Also, it is not possible for the access points P 1 to P 3 to transmit data to the tele-polling terminals. T 1 to T 9 , when they have extinguished their radiofrequency communication means.
  • each remote polling terminal T 1 to T 9 of the remote metering installation is associated with an access point P 1 to P 3 , said associated access point. All remote-reading terminals T 1 to T 9 associated with the same access point P 1 to P 3 form a group of remote polling terminals.
  • the association of a remote-reading terminal T 1 to T 9 to an access point P 1 to P 3 can be performed during the initialization of the remote-reading terminal T 1 to T 9 .
  • the association can be effected by the election, by the management server 1, of the access point P 1 to P 3 best receiving the signal from the remote terminal T 1 to T 9 being initialization.
  • the access points P 1 to P 3 transmit to the management server 1 an information message as soon as they receive the signal of a new remote-reading terminal T 1 to T 9 .
  • This message comprises the reception level of the signal from the remote terminal T 1 to T 9 being initialized.
  • the management server 1 elects the access point receiving the signals best from the remote terminal T 1 to T 9 during initialization, and then transmits to the access point P 1 to P 3 elected, an association message.
  • the association message informs the access point P 1 to P 3 elected, the remote terminal T 1 to T 9 being initialized joins the group of remote polling terminals associated with it.
  • This association message is immediately relayed by the access point P 1 to P 3 elected to the remote-reading terminal T 1 to T 9 being initialized.
  • the management server stores in its memory, the association between the dial-up terminal T 1 to T 9 and its access point P 1 to P 3 associated, and stores, in addition, the list of access points P 1 to P 3 having informed of the reception of the signal of the remote-calling terminal T 1 to T 9 being initialized.
  • the management server 1 can, at the end of this initialization phase, define zones of transmission range Z P1 to Z P3 of the access points P 1 to P 3 .
  • a first group T 1 to T 3 of remote polling terminals is associated by the management server 1 with the first access point P 1 , because of their presence in the transmission range area. Z P1 of the access point P 1 .
  • This association enables the first group of remote reading terminals T 1 to T 3 to communicate by radiofrequency link with their associated access point P 1 , to transmit data for remote reading, which may be measurement data and / or counting data, for example gas consumption.
  • This measurement and counting data is then transmitted by the associated access point P 1 to the management server 1 of the remote polling installation.
  • This association is performed for each remote-reporting terminal exclusively; also a dial-up terminal T 1 to T 9 always transmits its information to the same access point P 1 to P 3 associated.
  • a remote polling terminal may receive data from another access point P 1 to P 3 of the remote polling installation.
  • An access point P 1 to P 3 communicates with a plurality of dial-up terminals T 1 to T 9 , according to the instructions transmitted by the management server 1, and non-exclusively as to the choice of the television terminals -releases T 1 to T 9 communicating.
  • a second group T 4 to T 6 of remote polling terminals is associated with a second access point P 2 having a transmission range area Z P2
  • a third group T 7 to T 9 of terminals of remote reading is associated with a third access point P 3 having a transmission range Z P3 area .
  • the remote-reading terminal T 4 is included in the transmission range area Z P1 of the access point P 1 and in the transmission range area Z P2 of the access point P 2 . However, it is associated with the access point P 2 , according to what is explained above for the election of the associated access point during the initialization of the remote terminal T 4 .
  • the remote reading terminals T 5 and T 6 are included in the transmission range zone Z P2 the access point P 2 and the transmission range zone Z P3 P access point 3 . However, they are associated with the access point P 2 , according to what is explained above for the election of the associated access point during the initialization of the remote terminal T 4 .
  • the management server 1 receives update data for remote polling terminals, provided by the manufacturer of the remote polling terminals to be updated.
  • the management server 1 determines to which dial-up terminals T 1 to T 9 these update data are intended.
  • the management server 1 has in its internal memory information relating to each remote-reading terminal T 1 to T 9 of the remote polling installation.
  • the management server 1 stores for each dial-up terminal T 1 to T 9 , the manufacturer of the terminal, the model and the current version of the internal software, also called firmware or "firmware" in English. This data will enable the management server 1 to list the list of remote polling terminals T 1 to T 9 , affected by the update.
  • all the remote-reading terminals T 1 to T 9 are concerned by the software update; these are called remote polling terminals T 1 to T 9 to be updated. It is obvious to those skilled in the art to reduce the list of terminals of the installation to a list of terminals only concerned by the update, for example, by ignoring the possible remote-control terminals T 1 to T 9 not affected by the update.
  • the management server 1 will then establish the list of access points P 1 to P 3 associated with the remote-calling terminals T 1 to T 9 to be updated.
  • the list of access points associated with remote polling terminals T 1 to T 9 corresponds to the set of access points P 1 to P 3 of the installation.
  • the management server 1 will then transmit a message to all the access points P 1 to P 3 associated with remote polling terminals T 1 to T 9 to be updated.
  • This message commands the associated access points P 1 to P 3 to transmit an update data reception planning message to the remote reception terminals T 1 to T 9 to be updated, this message comprising a message.
  • predetermined time of start of broadcast update data The start time of broadcasting the update data can be encapsulated in the planning message as a timestamp value, also called "timestamp" in English. This predetermined time indicates to the remote terminal when it should turn on its radio frequency communication means, to receive the update data.
  • the management server 1 ensures that the access points P 1 to P 3 and the remote access terminals T 1 to T 9 of the installation are synchronized on the same hour, which is a thing well known to those skilled in the art.
  • the access points P 1 to P 3 waiting to receive data from a remote polling terminal T 1 to T 9 , to transmit the planning message, if this terminal is concerned by the update.
  • the remote-reading terminals T 1 to T 9 keep their radiofrequency communication means on for a short period following a remote data transmission, in order to receive a message from an access point P 1 to P 3 .
  • this short waiting period of a message can range from 1 second to 60 seconds.
  • the remote-reading terminals T 1 to T 9 extinguish their radio-frequency communication means until the next transmission of remote data.
  • a dial-up terminal T 1 to T 9 to be updated transmits remote reading data to its associated access point P 1 to P 3 , the latter sends it, at the end of the reception. data from remote reading, the message of planning initially transmitted by the management server 1, thus taking advantage of the short waiting period after the transmission of the data for remote reading, where the radio frequency communication means of the remote-reading terminal T 1 to T 9 remain active .
  • the remote polling terminal T 1 to T 9 then transmits an acknowledgment message to its associated access point P 1 to P 3 , to confirm the taking into account of the planning message and to confirm the wait, at the moment of beginning of diffusion, of the reception of the data of update.
  • the acknowledgment message confirms the schedule for receiving update data at the start of broadcast.
  • the access point P 1 to P 3 then transmits a message to the management server 1 to indicate that the planning message has been sent to the remote terminal T 1 to T 9 .
  • the management server 1 then proceeds to select a set of access points, called broadcast access points, from the plurality of access points P 1 to P 3 .
  • set is meant at least one access point P 1 to P 3
  • the selected broadcast access points will be used to transmit the update data to said predetermined start time of broadcast updating data.
  • the server will select these broadcast access points from among the plurality of access points P 1 to P 3 of the installation, as a function of the remote access terminals T 1 to T 9 to be updated, and according to transmission range areas of the access point P 1 to P 3 .
  • the management server 1 selects the smallest number of access points out of the plurality of access points P 1 to P 3 making it possible to send the updates to all the remote collection terminals. T 1 to T 9 to update.
  • the set consisting of the minimum number of access points adapted to simultaneously broadcast the updates on all the remote-service terminals to be updated, taking into account, on the one hand, the areas of coverage, is selected. transmission of the access points and, secondly, the locations of the remote polling terminals with respect to these transmission range areas.
  • the broadcast access points selected for broadcasting the update data correspond to the two access points P 1 and P 3 , excluding the access point P 2 , because the transmission range Z P1 and Z P3 , respectively associated with the access points P 1 and P 3 , cover and reach all the remote-reading terminals T 1 to T 9 to update.
  • This selection makes it possible to limit the number of access points P 1 to P 3 broadcast used to simultaneously transmit the update data. This advantageously makes it possible to reduce the size of the radio spectrum during the transmission of update data.
  • the broadcast access points P 1 and P 3 then receive from the management server 1 a notification message informing them that they have been selected as broadcast access points used to broadcast the update data. day.
  • the notification message includes the start time of the update data broadcast, as a timestamp.
  • the management server 1 transmits the update data to the selected access points P 1 and P 3 , so that they can, at the predetermined broadcast start time, transmit in turn, the data of bet to the remote-service terminals T 1 to T 9 to be updated.
  • the selected broadcast access points P 1 and P 3 transmit the updating data to the remote-reading terminals T 1 to T 9 to be updated several times in succession.
  • the transmission is carried out 5 consecutive times. This makes it possible to correct the updating data that may have been corrupted during radio frequency transmissions.
  • each remote terminal T 1 to T 9 to be updated having received the updates, extinguishes its radiofrequency communication means, checks the integrity of the updating data. received and proceeds to their writing in internal memory.
  • the remote metering installation comprises six dial-up terminals T 1 to T 6 to be updated and three access points P 1 to P 3 .
  • a first group of remote polling terminals T 1 to T 3 is associated, in an equivalent manner to that which has been carried out in the exemplary embodiment with reference to FIG. figure 2 at the first access point P 1 because of their presence in the transmission range area Z P1 of the access point P 1 .
  • This association allows the first group T 1 to T 3 to communicate by radiofrequency link with their associated access point P 1 , to transmit data remote reading.
  • a second group of remote polling terminals T 4 to T 6 is associated with a second access point P 3 .
  • an access point P 2 of the installation is associated with no remote access terminal T 1 to T 6 of the installation, despite the fact that the remote-control terminals T 1 at T 6 are included in its zone of emission range Z P2 .
  • the management server 1 selects, during the selection of the access points used for broadcasting the update data, the access point P 2 which is associated with no remote terminal T 1 to T 6 , to transmit the update data.
  • the size of the radio spectrum is advantageously reduced during the transmission.
  • transmission of the updating data since the updating data can be transmitted simultaneously to all the remote reading terminals T 1 to T 6 to be updated, by selecting a limited number of access points, in this case only one access point P 2 .
  • a broadcast access point P 2 may be an access point not associated with any terminal T 1 to T 6 of the installation. It also appears that an associated access point P 1 or P 3 to remote polling terminals T 4 to T 6 to be updated may not be selected as a broadcast access point for disseminate update data.

Description

La présente invention se rapporte à la gestion des mises à jour dans une installation de télé-relève. Elle concerne plus particulièrement un procédé de gestion de la mise à jour logicielle de terminaux de télé-relève d'une installation de télé-relève.The present invention relates to the management of updates in a remote metering installation. It relates more particularly to a method of managing the software update of remote-reading terminals of a remote-reading installation.

Une installation de télé-relève comprend classiquement plusieurs terminaux de télé-relève, par exemple des compteurs intelligents d'eau ou de gaz, pouvant effectuer un comptage de consommation mais aussi transmettre des informations issues de différents relevés (température, pollution, etc.). Les données transmises par les terminaux de télé-relève, transitent via des points d'accès, généralement par liaison radiofréquence. Ces points d'accès, permettent ensuite la remontée de l'information au niveau d'un serveur de gestion de l'installation de télé-relève, auquel ils sont reliés par l'intermédiaire d'un réseau de télécommunication, par exemple un réseau filaire ou sans fil, de type GPRS ou autre.A remote reading installation conventionally comprises several remote-reading terminals, for example smart meters for water or gas, which can perform a consumption metering but also transmit information from different readings (temperature, pollution, etc.). . The data transmitted by the remote polling terminals, transit via access points, usually by radiofrequency link. These access points, then allow the feedback of information at a remote management system management server, to which they are connected via a telecommunications network, for example a network wired or wireless, GPRS or other type.

Les terminaux de télé-relève sont installés sur les réseaux d'eau, de gaz ou sur tout autre réseau nécessitant un comptage et des mesures, la plupart du temps pour une longue durée, généralement de l'ordre de la dizaine d'années. Pour assurer leur fonctionnement permanent, même lors de l'absence de courant électrique, ces terminaux de télé-relève fonctionnent avec des accumulateurs électriques. Aussi, une problématique importante est la limitation de leur consommation électrique.The remote-control terminals are installed on the water, gas or other networks requiring counting and measurements, most of the time for a long period, generally of the order of ten years. To ensure their permanent operation, even when there is no power, these remote-control terminals work with electric accumulators. Also, an important problem is the limitation of their electrical consumption.

Pour mettre à jour les logiciels embarqués dans ces terminaux de télé-relève, il est connu de procéder à distance, en transmettant, via les points d'accès, les données de mise à jour. Cependant, les moyens de communication radiofréquence incorporés dans les terminaux de télé-relève étant relativement consommateur en énergie électrique, il est nécessaire de planifier la transmission de ces données de mise à jour.To update the embedded software in these remote polling terminals, it is known to proceed remotely, transmitting, via the access points, the update data. However, since the radiofrequency communication means incorporated in the remote-reading terminals are relatively energy-consuming, it is necessary to plan the transmission of these update data.

Aussi, nous connaissons, du document de brevet EP2661050 , un procédé de mise à jour de terminaux de télé-relève tous associés à un même point d'accès (« data collector » en anglais), qui transmet une annonce de mise à jour aux terminaux, indiquant à quel moment les données de mise à jour seront transmises par le point d'accès. Ainsi les terminaux activent leurs moyens de communication radiofréquence uniquement à l'instant indiqué dans l'annonce.Also, we know, from the patent document EP2661050 , a method of updating remote-reading terminals all associated with the same access point ("data collector"), which transmits an update announcement to the terminals, indicating when the update data will be transmitted by the access point. Thus, the terminals activate their radiofrequency communication means only at the instant indicated in the announcement.

Dans une installation de télé-relève, comprenant une pluralité de terminaux de télé-relève, et une pluralité de points d'accès, les mises à jour sont généralement transmises en même temps par tous les points d'accès, ce qui crée un fort encombrement du spectre radio et augmente le risque de mauvaise réception des données de mise à jour par les terminaux de télé-relève.In a remote polling system, comprising a plurality of remote polling terminals, and a plurality of access points, the updates are generally transmitted at the same time by all the access points, which creates a strong signal. congestion of the radio spectrum and increases the risk of poor reception of update data by the remote polling terminals.

Dans les espaces de grande concentration de terminaux de télé-relève, par exemple dans les grandes villes, ce risque est significativement augmenté, du fait de la superposition possible de plusieurs émissions quasi-simultanées sur des mêmes bandes fréquences.In areas of high concentration of remote-calling terminals, for example in large cities, this risk is significantly increased, because of the possible superposition of several quasi-simultaneous broadcasts on the same frequency bands.

On connait du document EP2661050 , une solution consistant à décaler dans le temps l'envoi des mises à jour par les points d'accès susceptibles d'interférer les uns avec les autres. Cependant, une telle solution produit un encombrement plus long des fréquences radios utilisées. En outre, une telle solution impose la gestion de plusieurs instants d'émission des mises à jour, ce qui tend à complexifier le déploiement technique de la mise à jour.We know of the document EP2661050 , a solution consisting in shifting in time the sending of updates by the access points likely to interfere with each other. However, such a solution produces a longer footprint of the radio frequencies used. In addition, such a solution requires the management of several times of issue updates, which tends to complicate the technical deployment of the update.

US2008/259844 , WO2005/015890 , EP2663089 et US2012/078547 décrivent d'autres exemples de procédés et d'installations de télé-relève. US2008 / 259844 , WO2005 / 015890 , EP2663089 and US2012 / 078547 describe other examples of remote calling processes and facilities.

Aussi, il existe un besoin pour optimiser la gestion des mises à jour dans une installation de télé-relève.Also, there is a need to optimize the management of updates in a remote polling facility.

En particulier, il existe un besoin d'une solution alternative pour limiter les problèmes d'interférence lors de l'envoi d'une mise à jour par une pluralité de points d'accès.In particular, there is a need for an alternative solution for limiting interference problems when sending an update by a plurality of access points.

Dans le but de résoudre ce problème, la présente invention propose un procédé selon la revendication 1 de gestion d'une mise à jour logicielle d'une pluralité de terminaux de télé-relève à mettre à jour dans une installation de télé-relève comprenant une pluralité de points d'accès, la pluralité de points d'accès étant adaptée pour communiquer par liaison radiofréquence avec la pluralité de terminaux de télé-relève à mettre à jour, et étant adaptée pour communiquer avec un serveur de gestion de l'installation de télé-relève par l'intermédiaire d'un réseau de télécommunication, chaque terminal de télé-relève de la pluralité de terminaux de télé-relève à mettre à jour étant associé à un point d'accès de la pluralité de points d'accès pour transmettre des données de télé-relève au serveur de gestion, le procédé étant caractérisé en ce qu'il comprend des étapes de :

  1. (a) transmission d'un message de planification de réception de données de mise à jour à la pluralité de terminaux de télé-relève à mettre à jour par l'intermédiaire de leurs points d'accès associés, le message de planification comprenant un instant de début de diffusion des données de mise à jour ;
  2. (b) sélection d'un ensemble de points d'accès parmi la pluralité de points d'accès de manière à limiter le nombre de points d'accès utilisés pour diffuser les données de mise à jour, tout en permettant la réception des données de mise à jour par la pluralité de terminaux de télé-relève à mettre à jour ;
  3. (c) émission des données de mise à jour par l'ensemble de points d'accès sélectionné, à l'instant de début de diffusion,
l'étape (b) de sélection comprend la sélection du plus petit nombre de point d'accès permettant d'émettre des mises à jour simultanément, en tenant compte d'une part, des zones de portée d'émission des points d'accès et, d'autre part, des emplacements des terminaux de télé-relève relativement à ces zones de portée d'émission, de telle sorte que les zones de portée d'émission des points d'accès dudit plus petit nombre de points d'accès sélectionnés couvrent et atteignent l'ensemble des terminaux à mettre à jour.In order to solve this problem, the present invention proposes a method according to claim 1 for managing a software update of a plurality of remote metering terminals to be updated in a remote metering installation comprising a plurality of access points, the plurality of access points being adapted to communicate over the radio frequency link with the plurality of remote polling terminals to update, and being adapted to communicate with a management server of the remote reading installation via a telecommunication network, each remote terminal of the plurality of remote-reading terminals to update being associated with an access point of the plurality of access points for transmitting remote data to the management server, the method being characterized in that it comprises steps of:
  1. (a) transmitting an update data reception scheduling message to the plurality of remote polling terminals to be updated via their associated access points, the planning message comprising an instant start of broadcast update data;
  2. (b) selecting a set of access points from the plurality of access points to limit the number of access points used to broadcast the update data, while allowing reception of the data of updated by the plurality of remote polling terminals to be updated;
  3. (c) transmitting the update data by the set of access points selected at the start of broadcast time,
the selection step (b) comprises selecting the smallest number of access points for issuing updates simultaneously, taking into account, on the one hand, the transmission range areas of the access points and, on the other hand, locations of the remote polling terminals relative to these transmission range areas, such that the transmission range areas of the access points of said smaller number of access points. selected cover and reach all terminals to update.

Les terminaux de télé-relève de la pluralité de terminaux de télé-relève peuvent être, de manière non limitative, des compteurs d'eau, des compteurs de gaz, des compteurs d'électricité, mais aussi des dispositifs de surveillance de capteurs, par exemple pour surveiller des capteurs de débits de pression, de température, d'humidité, de niveaux, de vitesse, des capteurs acoustiques, des capteurs de conductivité, de turbidité, de mesure de pH, de taux H2S. Ces terminaux de télé-relève peuvent aussi être, de manière non limitative, des dispositifs de surveillance de capteurs dans l'habitat et les activités tertiaires, par exemple de surveillance de capteurs de détection d'intrusion, de fumée, de monoxyde de carbone.The remote-reading terminals of the plurality of remote-reading terminals may be, without limitation, water meters, gas meters, electricity meters, but also sensor monitoring devices, for example. example to monitor sensors for flow rates, temperature, humidity, levels, speed, acoustic sensors, conductivity sensors, turbidity, pH measurement, H2S. These remote-reading terminals may also be, in a non-limiting manner, sensor monitoring devices in housing and tertiary activities, for example monitoring intrusion detection sensors, smoke, carbon monoxide.

Ces terminaux de télé-relève peuvent aussi, de manière non limitative, comprendre ou être des dispositifs permettant de piloter des actionneurs, par exemple pour fermer des vannes en cas de détection de fuites.These remote-reading terminals can also, without limitation, include or be devices for controlling actuators, by example to close valves in case of leak detection.

Avantageusement la sélection opérée à l'étape (b), de l'ensemble de points d'accès de diffusion, permet de réduire l'encombrement du spectre radio lors de la transmission des données de mise à jour, ce qui permet aussi la réduction du risque de mauvaise réception de données de mise à jour par les terminaux de télé-relève.Advantageously, the selection made in step (b) of the set of broadcast access points makes it possible to reduce the size of the radio spectrum during the transmission of update data, which also allows the reduction the risk of poor reception of update data by remote polling terminals.

En particulier, l'étape (b) de sélection comprend la transmission d'un message de notification de la sélection à chaque point d'accès de l'ensemble de points d'accès sélectionné, le message de notification comprenant l'instant de début de diffusion.In particular, the selection step (b) comprises transmitting a notification message of the selection to each access point of the set of access points selected, the notification message comprising the start time of diffusion.

Avantageusement, lors de l'étape (a) de transmission du message de planification de réception des données de mise à jour, chaque terminal de la pluralité de terminaux de télé-relève à mettre à jour émet un message d'acquittement à destination de son point d'accès associé, pour confirmer la planification de la réception des données de mise à jour à l'instant de début de diffusion.Advantageously, during step (a) of transmission of the update data reception planning message, each terminal of the plurality of remote polling terminals to be updated transmits an acknowledgment message to its destination. associated access point, to confirm the schedule for receiving the update data at the start of broadcast time.

En particulier, l'étape (c) d'émission des données de mise à jour par l'ensemble de points d'accès sélectionné est effectuée plusieurs fois consécutives.In particular, the step (c) of sending update data by the set of access points selected is performed several consecutive times.

De manière avantageuse, l'étape (a) de transmission du message de planification de réception des données de mise à jour est effectuée, pour chaque terminal de télé-relève de la pluralité de terminaux de télé-relève (T1-T9) à mettre à jour, consécutivement à la réception, par son point d'accès associé, de données de télé-relève émises par le terminal de télé-relève.Advantageously, the step (a) of transmitting the update data reception planning message is carried out, for each remote terminal of the plurality of remote metering terminals (T 1 -T 9 ). to update, following the reception, by its associated access point, of remote reading data transmitted by the remote-reading terminal.

La présente invention propose, en outre, une installation de télé-relève selon la revendication 6 comprenant :

  • Un serveur de gestion ;
  • Une pluralité de terminaux de télé-relève à mettre à jour ;
  • Une pluralité de points d'accès ;
la pluralité de points d'accès étant adaptée pour communiquer par liaison radiofréquence avec la pluralité de terminaux de télé-relève à mettre à jour, et étant adaptée pour communiquer avec le serveur de gestion de l'installation de télé-relève par l'intermédiaire d'un réseau de télécommunication, chaque terminal de télé-relève de la pluralité de terminaux de télé-relève à mettre à jour étant associé à un point d'accès de la pluralité de points d'accès pour transmettre des données de télé-relève au serveur de gestion,
l'installation de télé-relève étant caractérisée en ce que :
  • le serveur de gestion est adapté pour commander la transmission d'un message de planification de réception de données de mise à jour à la pluralité de terminaux de télé-relève à mettre à jour, par l'intermédiaire de leurs points d'accès associés, le message de planification comprenant un instant de début de diffusion des données de mise à jour;
  • le serveur de gestion étant adapté pour sélectionner un ensemble de points d'accès parmi la pluralité de points d'accès de manière à limiter le nombre de points d'accès utilisés pour diffuser les données de mise à jour, tout en permettant la réception des données de mise à jour par la pluralité de terminaux de télé-relève à mettre à jour ;
  • l'ensemble de points d'accès sélectionné par le serveur de gestion étant adapté pour émettre les données de mise à jour à l'instant de début de diffusion,
ladite sélection dudit ensemble de points d'accès comprenant la sélection du plus petit nombre de point d'accès permettant d'émettre des mises à jour simultanément, en tenant compte d'une part, des zones de portée d'émission des points d'accès et, d'autre part, des emplacements des terminaux de télé-relève relativement à ces zones de portée d'émission, de telle sorte que les zones de portée d'émission des points d'accès dudit plus petit nombre de points d'accès sélectionnés couvrent et atteignent l'ensemble des terminaux à mettre à jour.The present invention further proposes a remote metering system according to claim 6 comprising:
  • A management server
  • A plurality of remote polling terminals to be updated;
  • A plurality of access points;
the plurality of access points being adapted to communicate by radiofrequency link with the plurality of remote metering terminals to be updated, and being adapted to communicate with the management server of the remote metering facility via of a telecommunication network, each remote terminal of the plurality of remote polling terminals to be updated being associated with an access point of the plurality of access points for transmitting remote polling data. to the management server,
the remote-relief installation being characterized in that:
  • the management server is adapted to control the transmission of an update data reception planning message to the plurality of remote polling terminals to be updated, via their associated access points, the planning message including a start time of broadcasting the update data;
  • the management server being adapted to select a set of access points from the plurality of access points so as to limit the number of access points used to broadcast the update data, while allowing the reception of the access points; update data by the plurality of remote polling terminals to be updated;
  • the set of access points selected by the management server being adapted to transmit the update data at the start of broadcast time,
said selection of said set of access points comprising selecting the smallest number of access points for issuing updates simultaneously, taking into account, on the one hand, the transmission range areas of the points of access; access and on the other hand, locations of the remote polling terminals with respect to these transmission range areas, so that the transmission range areas of the access points of the lowest number of points of transmission Selected accesses cover and reach all terminals to be updated.

D'autres particularités et avantages de l'invention ressortiront à la lecture de la description faite ci-après de deux modes de réalisation particuliers de l'invention, donnés à titre indicatif mais non limitatif, en référence aux dessins annexés sur lesquels :

  • la figure 1 représente un exemple d'installation de télé-relève selon un premier mode de réalisation de l'invention ;
  • la figure 2 représente un exemple d'installation de télé-relève selon un deuxième mode de réalisation de l'invention ;
Other features and advantages of the invention will emerge from a reading of the description given below of two particular embodiments of the invention, given by way of indication but not limitation, with reference to the accompanying drawings in which:
  • the figure 1 represents an example of a remote metering installation according to a first embodiment of the invention;
  • the figure 2 represents an example of a remote metering installation according to a second embodiment of the invention;

En référence à la figure 1, une installation de télé-relève comprend un serveur 1 de gestion de l'installation de télé-relève.With reference to the figure 1 , a remote metering installation comprises a server 1 for managing the remote metering installation.

Ce serveur de gestion 1 communique via un réseau de télécommunication avec 3 points d'accès P1, P2, P3 de l'installation. Le serveur de gestion 1, comprend par exemple, une carte réseau pour communiquer avec les points d'accès P1 à P3, un microprocesseur et une mémoire interne.This management server 1 communicates via a telecommunication network with 3 access points P 1 , P 2 , P 3 of the installation. The management server 1, for example, comprises a network card for communicating with the access points P 1 to P 3 , a microprocessor and an internal memory.

Ces points d'accès P1 à P3 comprennent par exemple, une carte d'émission-réception radiofréquence et une antenne radio pour communiquer avec des terminaux de télé-relève T1 à T9 de l'installation, une carte réseau pour communiquer via le réseau de télécommunication avec le serveur de gestion 1, un micro-processeur et une mémoire interne.These access points P 1 to P 3 comprise, for example, a radiofrequency transmission-reception card and a radio antenna for communicating with remote-service terminals T 1 to T 9 of the installation, a network card for communicating with each other. via the telecommunication network with the management server 1, a microprocessor and an internal memory.

L'installation de télé-relève comprend en outre une pluralité de terminaux de télé-relève T1 à T9, dans cet exemple de réalisation 9 terminaux de télé-relève T1 à T9. Ces terminaux de télé-relève T1 à T9 sont, par exemple, des terminaux de comptage de la consommation de gaz, installés dans des circuits d'arrivée de gaz de logements individuels. Les terminaux de télé-relève T1 à T9 comprennent, par exemple, une pile électrique, un micro-processeur, une mémoire interne, des moyens de communication radiofréquence et des moyens de comptage de la consommation de gaz. Les terminaux de télé-relève T1 à T9 communiquent, via leurs moyens de communication radiofréquence, avec les points d'accès P1 à P3 par une liaison radiofréquence. Les moyens de communication radiofréquence des terminaux de télé-relève T1 à T9 sont, d'un point de vue général, éteints en dehors des périodes d'émission de données de télé-relève, pour économiser la pile électrique. Aussi il n'est pas possible aux points d'accès P1 à P3 de transmettre des données aux terminaux de télé-relève T1 à T9, lorsque ceux-ci ont éteint leurs moyens de communication radiofréquence.The remote polling installation furthermore comprises a plurality of remote polling terminals T 1 to T 9 , in this embodiment 9 remote polling terminals T 1 to T 9 . These remote-reading terminals T 1 to T 9 are, for example, gas consumption metering terminals, installed in gas supply circuits for individual dwellings. The remote-reading terminals T 1 to T 9 comprise, for example, an electric battery, a microprocessor, an internal memory, radiofrequency communication means and means for counting the consumption of gas. The remote-reading terminals T 1 to T 9 communicate, via their radiofrequency communication means, with the access points P 1 to P 3 via a radiofrequency link. The radiofrequency communication means of the remote reading terminals T 1 to T 9 are, from a general point of view, extinguished outside the periods for sending remote polling data, in order to save the electric battery. Also, it is not possible for the access points P 1 to P 3 to transmit data to the tele-polling terminals. T 1 to T 9 , when they have extinguished their radiofrequency communication means.

Du fait des limites de portée d'émission des moyens de communication radiofréquence des terminaux de télé-relève T1 à T9 et des limites de portée d'émission des moyens de communication radiofréquence des points d'accès P1 à P3, chaque terminal de télé-relève T1 à T9 de l'installation de télé-relève est associé à un point d'accès P1 à P3, dit point d'accès associé. L'ensemble des terminaux de télé-relève T1 à T9 associés à un même point d'accès P1 à P3 forment un groupe de terminaux de télé-relève.Due to the transmission range limits of the radiofrequency communication means of the remote-reporting terminals T 1 to T 9 and the transmission range limits of the radiofrequency communication means of the access points P 1 to P 3 , each remote polling terminal T 1 to T 9 of the remote metering installation is associated with an access point P 1 to P 3 , said associated access point. All remote-reading terminals T 1 to T 9 associated with the same access point P 1 to P 3 form a group of remote polling terminals.

L'association d'un terminal de télé-relève T1 à T9 à un point d'accès P1 à P3 peut être effectuée lors de l'initialisation du terminal de télé-relève T1 à T9.The association of a remote-reading terminal T 1 to T 9 to an access point P 1 to P 3 can be performed during the initialization of the remote-reading terminal T 1 to T 9 .

Préférentiellement, l'association peut être effectuée par l'élection, par le serveur de gestion 1, du point d'accès P1 à P3 recevant le mieux le signal du terminal de télé-relève T1 à T9 en cours d'initialisation. A cette fin, les points d'accès P1 à P3, transmettent au serveur de gestion 1 un message d'information dès qu'ils captent le signal d'un nouveau terminal de télé-relève T1 à T9. Ce message comprend le niveau de réception du signal du terminal de télé-relève T1 à T9 en cours d'initialisation. Aussi, à l'issue d'une courte période d'attente, de l'ordre de quelques secondes, le serveur de gestion 1 élit le point d'accès recevant le mieux les signaux du terminal de télé-relève T1 à T9 en cours d'initialisation, et transmet alors au point d'accès P1 à P3 élu, un message d'association. Le message d'association informe le point d'accès P1 à P3 élu, que le terminal de télé-relève T1 à T9 en cours d'initialisation rejoint le groupe de terminaux de télé-relève qui lui sont associés. Ce message d'association est immédiatement relayé par le point d'accès P1 à P3 élu au terminal de télé-relève T1 à T9 en cours d'initialisation. Aussi, le serveur de gestion 1, stocke dans sa mémoire, l'association entre le terminal de télé-relève T1 à T9 et son point d'accès P1 à P3 associé, et stocke, en outre, la liste des points d'accès P1 à P3 ayant informé de la réception du signal du terminal de télé-relève T1 à T9 en cours d'initialisation.Preferably, the association can be effected by the election, by the management server 1, of the access point P 1 to P 3 best receiving the signal from the remote terminal T 1 to T 9 being initialization. To this end, the access points P 1 to P 3 transmit to the management server 1 an information message as soon as they receive the signal of a new remote-reading terminal T 1 to T 9 . This message comprises the reception level of the signal from the remote terminal T 1 to T 9 being initialized. Also, after a short waiting period, of the order of a few seconds, the management server 1 elects the access point receiving the signals best from the remote terminal T 1 to T 9 during initialization, and then transmits to the access point P 1 to P 3 elected, an association message. The association message informs the access point P 1 to P 3 elected, the remote terminal T 1 to T 9 being initialized joins the group of remote polling terminals associated with it. This association message is immediately relayed by the access point P 1 to P 3 elected to the remote-reading terminal T 1 to T 9 being initialized. Also, the management server 1, stores in its memory, the association between the dial-up terminal T 1 to T 9 and its access point P 1 to P 3 associated, and stores, in addition, the list of access points P 1 to P 3 having informed of the reception of the signal of the remote-calling terminal T 1 to T 9 being initialized.

Le serveur de gestion 1 peut, à l'issue de cette phase d'initialisation, définir des zones de portée d'émission ZP1 à ZP3 des points d'accès P1 à P3.The management server 1 can, at the end of this initialization phase, define zones of transmission range Z P1 to Z P3 of the access points P 1 to P 3 .

Dans ce mode de réalisation, un premier groupe T1 à T3 de terminaux de télé-relève est associé par le serveur de gestion 1 au premier point d'accès P1, du fait de leur présence dans la zone de portée d'émission ZP1 du point d'accès P1. Cette association permet au premier groupe de terminaux de télé-relève T1 à T3 de communiquer par liaison radiofréquence avec leur point d'accès associé P1, pour transmettre des données de télé-relève, qui peuvent être des données de mesure et/ou des données de comptage, par exemple de la consommation de gaz. Ces données de mesures et de comptage sont ensuite transmises par le point d'accès associé P1 au serveur de gestion 1 de l'installation de télé-relève. Cette association est effectuée pour chaque terminal de télé-relève de manière exclusive ; aussi un terminal de télé-relève T1 à T9 transmet toujours ses informations au même point d'accès P1 à P3 associé. Néanmoins un terminal de télé-relève peut recevoir des données d'un autre point d'accès P1 à P3 de l'installation de télé-relève. Un point d'accès P1 à P3 communique avec une pluralité de terminaux de télé-relève T1 à T9, en fonction des instructions transmises par le serveur de gestion 1, et de manière non exclusive quant au choix des terminaux de télé-relève T1 à T9 communicants.In this embodiment, a first group T 1 to T 3 of remote polling terminals is associated by the management server 1 with the first access point P 1 , because of their presence in the transmission range area. Z P1 of the access point P 1 . This association enables the first group of remote reading terminals T 1 to T 3 to communicate by radiofrequency link with their associated access point P 1 , to transmit data for remote reading, which may be measurement data and / or counting data, for example gas consumption. This measurement and counting data is then transmitted by the associated access point P 1 to the management server 1 of the remote polling installation. This association is performed for each remote-reporting terminal exclusively; also a dial-up terminal T 1 to T 9 always transmits its information to the same access point P 1 to P 3 associated. Nevertheless, a remote polling terminal may receive data from another access point P 1 to P 3 of the remote polling installation. An access point P 1 to P 3 communicates with a plurality of dial-up terminals T 1 to T 9 , according to the instructions transmitted by the management server 1, and non-exclusively as to the choice of the television terminals -releases T 1 to T 9 communicating.

De manière similaire un deuxième groupe T4 à T6 de terminaux de télé-relève est associé à un deuxième point d'accès P2 ayant une zone de portée d'émission ZP2, et un troisième groupe T7 à T9 de terminaux de télé-relève est associé à un troisième point d'accès P3 ayant une zone de portée d'émission ZP3.Similarly, a second group T 4 to T 6 of remote polling terminals is associated with a second access point P 2 having a transmission range area Z P2 , and a third group T 7 to T 9 of terminals of remote reading is associated with a third access point P 3 having a transmission range Z P3 area .

Le terminal de télé-relève T4 est compris dans la zone de portée d'émission ZP1 du point d'accès P1 et dans la zone de portée d'émission ZP2 du point d'accès P2. Cependant il est associé au point d'accès P2, conformément à ce qui est explicité précédemment pour l'élection du point d'accès associé lors de l'initialisation du terminal de télé-relève T4.The remote-reading terminal T 4 is included in the transmission range area Z P1 of the access point P 1 and in the transmission range area Z P2 of the access point P 2 . However, it is associated with the access point P 2 , according to what is explained above for the election of the associated access point during the initialization of the remote terminal T 4 .

Similairement, les terminaux de télé-relève T5 et T6 sont compris dans la zone de portée d'émission ZP2 du point d'accès P2 et dans la zone de portée d'émission ZP3 du point d'accès P3. Cependant, ils sont associés au point d'accès P2, conformément à ce qui est explicité précédemment pour l'élection du point d'accès associé lors de l'initialisation du terminal de télé-relève T4.Similarly, the remote reading terminals T 5 and T 6 are included in the transmission range zone Z P2 the access point P 2 and the transmission range zone Z P3 P access point 3 . However, they are associated with the access point P 2 , according to what is explained above for the election of the associated access point during the initialization of the remote terminal T 4 .

Le serveur de gestion 1 reçoit des données de mises à jour pour des terminaux de télé-relève, fournies par le fabricant des terminaux de télé-relève à mettre à jour. Le serveur de gestion 1 détermine à quels terminaux de télé-relève T1 à T9 ces données de mise à jour sont destinées. Pour ce faire, le serveur de gestion 1 possède dans sa mémoire interne des informations relative à chaque terminal de télé-relève T1 à T9 de l'installation de télé-relève. En particulier, le serveur de gestion 1 stocke pour chaque terminal de télé-relève T1 à T9, le fabricant du terminal, le modèle et la version courante du logiciel interne, aussi nommé micrologiciel ou « firmware » en anglais. Ces données vont permettre au serveur de gestion 1 de recenser la liste des terminaux de télé-relève T1 à T9, concernés par la mise à jour. Dans cet exemple de réalisation, l'ensemble des terminaux de télé-relève T1 à T9 est concerné par la mise à jour logicielle ; on parle alors de terminaux de télé-relève T1 à T9 à mettre à jour. Il est évident pour l'homme du métier, de réduire la liste des terminaux de l'installation à une liste de terminaux uniquement concerné par la mise à jour, par exemple, en ignorant les éventuels terminaux de télé-relève T1 à T9 non concernés par la mise à jour.The management server 1 receives update data for remote polling terminals, provided by the manufacturer of the remote polling terminals to be updated. The management server 1 determines to which dial-up terminals T 1 to T 9 these update data are intended. To do this, the management server 1 has in its internal memory information relating to each remote-reading terminal T 1 to T 9 of the remote polling installation. In particular, the management server 1 stores for each dial-up terminal T 1 to T 9 , the manufacturer of the terminal, the model and the current version of the internal software, also called firmware or "firmware" in English. This data will enable the management server 1 to list the list of remote polling terminals T 1 to T 9 , affected by the update. In this exemplary embodiment, all the remote-reading terminals T 1 to T 9 are concerned by the software update; these are called remote polling terminals T 1 to T 9 to be updated. It is obvious to those skilled in the art to reduce the list of terminals of the installation to a list of terminals only concerned by the update, for example, by ignoring the possible remote-control terminals T 1 to T 9 not affected by the update.

Le serveur de gestion 1 va alors établir la liste des points d'accès P1 à P3 associés aux terminaux de télé-relève T1 à T9 à mettre à jour. Dans cet exemple la liste des points d'accès associés aux terminaux de télé-relève T1 à T9 correspond à l'ensemble des points d'accès P1 à P3 de l'installation.The management server 1 will then establish the list of access points P 1 to P 3 associated with the remote-calling terminals T 1 to T 9 to be updated. In this example, the list of access points associated with remote polling terminals T 1 to T 9 corresponds to the set of access points P 1 to P 3 of the installation.

Le serveur de gestion 1 va ensuite transmettre un message à tous les points d'accès P1 à P3 associés aux terminaux de télé-relève T1 à T9 à mettre à jour. Ce message commande aux point d'accès P1 à P3 associés de transmettre un message de planification de réception de données de mise à jour aux terminaux de télé-relève T1 à T9 à mettre à jour, ce message comprenant un instant prédéterminé de début de diffusion des données de mise à jour. L'instant de début de diffusion des données de mise à jour peut être encapsulé dans le message de planification comme une valeur d'horodatage, aussi nommé « timestamp » en anglais. Cet instant prédéterminé indique au terminal de télé-relève à quel moment il doit allumer ses moyens de communication radiofréquence, pour recevoir les données de mise à jour.The management server 1 will then transmit a message to all the access points P 1 to P 3 associated with remote polling terminals T 1 to T 9 to be updated. This message commands the associated access points P 1 to P 3 to transmit an update data reception planning message to the remote reception terminals T 1 to T 9 to be updated, this message comprising a message. predetermined time of start of broadcast update data. The start time of broadcasting the update data can be encapsulated in the planning message as a timestamp value, also called "timestamp" in English. This predetermined time indicates to the remote terminal when it should turn on its radio frequency communication means, to receive the update data.

Pour que le système fonctionne de manière cohérente, le serveur de gestion 1, veille à ce que les points d'accès P1 à P3 et les terminaux de télé-relève T1 à T9 de l'installation soient synchronisés sur un même horaire, ce qui est une chose bien connue de l'homme du métier.In order for the system to operate in a coherent manner, the management server 1 ensures that the access points P 1 to P 3 and the remote access terminals T 1 to T 9 of the installation are synchronized on the same hour, which is a thing well known to those skilled in the art.

Du fait de l'extinction des moyens de communication radiofréquence des terminaux de télé-relève T1 à T9, en dehors des instants où ils doivent transmettre leurs données de télé-relève, il n'est pas possible, pour les points d'accès P1 à P3, de transmettre immédiatement le message de planification de réception de données de mise à jour aux terminaux de télé-relève T1 à T9 à mettre à jour.Due to the extinction of the radiofrequency communication means of the remote-reading terminals T 1 to T 9 , outside the times when they have to transmit their data for remote reading, it is not possible, for the points of access P 1 to P 3 , immediately transmit the update data reception planning message to the remote polling terminals T 1 to T 9 to be updated.

Aussi, les points d'accès P1 à P3, attendent de recevoir des données de télé-relève venant d'un terminal de télé-relève T1 à T9, pour lui transmettre le message de planification, si ce terminal est concerné par la mise à jour. En effet, les terminaux de télé-relève T1 à T9 gardent leurs moyens de communication radiofréquence allumés pendant une courte période suivant une émission de données de télé-relève, dans le but de recevoir un message provenant d'un point d'accès P1 à P3. Avantageusement, cette courte période d'attente d'un message peut aller de 1 seconde à 60 secondes. A l'issue de cette courte période d'attente, les terminaux de télé-relève T1 à T9, éteignent leurs moyens de communication radiofréquence, jusqu'à la prochaine transmission de données de télé-relève.Also, the access points P 1 to P 3 , waiting to receive data from a remote polling terminal T 1 to T 9 , to transmit the planning message, if this terminal is concerned by the update. Indeed, the remote-reading terminals T 1 to T 9 keep their radiofrequency communication means on for a short period following a remote data transmission, in order to receive a message from an access point P 1 to P 3 . Advantageously, this short waiting period of a message can range from 1 second to 60 seconds. At the end of this short waiting period, the remote-reading terminals T 1 to T 9 extinguish their radio-frequency communication means until the next transmission of remote data.

Lorsqu'un terminal de télé-relève T1 à T9 à mettre à jour, transmet des données de télé-relève à son point d'accès P1 à P3 associé, ce dernier lui transmet, à l'issu de la réception des données de télé-relève, le message de planification initialement transmis par le serveur de gestion 1, en profitant ainsi de la courte période d'attente suivant l'émission des données de télé-relève, où les moyens de communication radiofréquence du terminal de télé-relève T1 à T9 demeurent actifs.When a dial-up terminal T 1 to T 9 to be updated, transmits remote reading data to its associated access point P 1 to P 3 , the latter sends it, at the end of the reception. data from remote reading, the message of planning initially transmitted by the management server 1, thus taking advantage of the short waiting period after the transmission of the data for remote reading, where the radio frequency communication means of the remote-reading terminal T 1 to T 9 remain active .

Le terminal de télé-relève T1 à T9 émet ensuite un message d'acquittement à destination de son point d'accès P1 à P3 associé, pour confirmer la prise en compte du message de planification et pour confirmer l'attente, à l'instant de début de diffusion, de la réception des données de mise à jour. Autrement dit le message d'acquittement confirme la planification de la réception des données de mise à jour à l'instant de début de diffusion.The remote polling terminal T 1 to T 9 then transmits an acknowledgment message to its associated access point P 1 to P 3 , to confirm the taking into account of the planning message and to confirm the wait, at the moment of beginning of diffusion, of the reception of the data of update. In other words, the acknowledgment message confirms the schedule for receiving update data at the start of broadcast.

Le point d'accès P1 à P3, transmet ensuite un message au serveur de gestion 1 pour indiquer que le message de planification a bien été transmis au terminal de télé-relève T1 à T9.The access point P 1 to P 3 , then transmits a message to the management server 1 to indicate that the planning message has been sent to the remote terminal T 1 to T 9 .

Le serveur de gestion 1, procède ensuite à la sélection d'un ensemble de points d'accès, dits points d'accès de diffusion, parmi la pluralité de points d'accès P1 à P3. Par ensemble on entend au moins un point d'accès P1 à P3 Les points d'accès de diffusion sélectionnés seront utilisés pour transmettre les données de mise à jour audit instant prédéterminé de début de diffusion des données de mise à jour. Le serveur va sélectionner ces points d'accès de diffusion parmi la pluralité de points d'accès P1 à P3 de l'installation, en fonction des terminaux de télé-relève T1 à T9 à mettre à jour, et en fonction des zones de portée d'émission des point d'accès P1 à P3. Selon l'invention, le serveur de gestion 1, sélectionne le plus petit nombre de point d'accès parmi la pluralité de points d'accès P1 à P3 permettant d'émettre les mises à jour à tous les terminaux de télé-relève T1 à T9 à mettre à jour. Autrement dit, on sélectionne l'ensemble constitué du nombre minimal de points d'accès propres à diffuser simultanément les mises à jour sur tous les terminaux de télé-relève à mettre en jour, tenant compte d'une part, des zones de portée d'émission des points d'accès et, d'autre part, des emplacements des terminaux de télé-relève relativement à ces zones de portée d'émission.The management server 1 then proceeds to select a set of access points, called broadcast access points, from the plurality of access points P 1 to P 3 . By set is meant at least one access point P 1 to P 3 The selected broadcast access points will be used to transmit the update data to said predetermined start time of broadcast updating data. The server will select these broadcast access points from among the plurality of access points P 1 to P 3 of the installation, as a function of the remote access terminals T 1 to T 9 to be updated, and according to transmission range areas of the access point P 1 to P 3 . According to the invention, the management server 1 selects the smallest number of access points out of the plurality of access points P 1 to P 3 making it possible to send the updates to all the remote collection terminals. T 1 to T 9 to update. In other words, the set consisting of the minimum number of access points adapted to simultaneously broadcast the updates on all the remote-service terminals to be updated, taking into account, on the one hand, the areas of coverage, is selected. transmission of the access points and, secondly, the locations of the remote polling terminals with respect to these transmission range areas.

Dans cet exemple de réalisation, les points d'accès de diffusion sélectionnés pour diffuser les données de mise à jour, correspondent aux deux points d'accès P1 et P3, en excluant le point d'accès P2, car les zones de portée d'émissions ZP1 et ZP3, respectivement associées aux points d'accès P1 et P3, permettent de couvrir et d'atteindre l'ensemble des terminaux de télé-relève T1 à T9 à mettre à jour. Cette sélection permet de limiter le nombre de point d'accès P1 à P3 de diffusion utilisés pour transmettre simultanément les données de mise à jour. Ce qui permet, avantageusement, de réduire l'encombrement du spectre radio lors de la transmission des données de mise à jour.In this exemplary embodiment, the broadcast access points selected for broadcasting the update data correspond to the two access points P 1 and P 3 , excluding the access point P 2 , because the transmission range Z P1 and Z P3 , respectively associated with the access points P 1 and P 3 , cover and reach all the remote-reading terminals T 1 to T 9 to update. This selection makes it possible to limit the number of access points P 1 to P 3 broadcast used to simultaneously transmit the update data. This advantageously makes it possible to reduce the size of the radio spectrum during the transmission of update data.

Les points d'accès de diffusion P1 et P3, reçoivent alors du serveur de gestion 1, un message de notification les informant qu'ils ont été sélectionnés en tant que points d'accès de diffusion utilisés pour diffuser les données de mise à jour. Le message de notification comprend l'instant de début de diffusion des données de mise à jour, sous forme d'horodatage. Ensuite le serveur de gestion 1 transmet les données de mise à jour aux point d'accès sélectionnés P1 et P3, pour qu'ils puissent, à l'instant de début de diffusion prédéterminé, transmettre à leur tour, les données de mise à jour aux terminaux de télé-relève T1 à T9 à mettre à jour.The broadcast access points P 1 and P 3 then receive from the management server 1 a notification message informing them that they have been selected as broadcast access points used to broadcast the update data. day. The notification message includes the start time of the update data broadcast, as a timestamp. Then the management server 1 transmits the update data to the selected access points P 1 and P 3 , so that they can, at the predetermined broadcast start time, transmit in turn, the data of bet to the remote-service terminals T 1 to T 9 to be updated.

Pour garantir une bonne réception de ces données, les points d'accès de diffusion P1 et P3 sélectionnés transmettent plusieurs fois consécutives les données de mise à jour aux terminaux de télé-relève T1 à T9 à mettre à jour. Avantageusement la transmission est effectuée 5 fois consécutives. Ceci permet de corriger les données de mise à jour ayant pu être corrompues lors des transmissions radiofréquence.To guarantee good reception of these data, the selected broadcast access points P 1 and P 3 transmit the updating data to the remote-reading terminals T 1 to T 9 to be updated several times in succession. Advantageously, the transmission is carried out 5 consecutive times. This makes it possible to correct the updating data that may have been corrupted during radio frequency transmissions.

Une fois les données de mise à jour reçues, chaque terminal de télé-relève T1 à T9 à mettre à jour, ayant reçu les mises à jour, éteint ses moyens de communication radiofréquence, vérifie l'intégrité des données de mise à jour reçues et procède à leur écriture en mémoire interne.Once the update data has been received, each remote terminal T 1 to T 9 to be updated, having received the updates, extinguishes its radiofrequency communication means, checks the integrity of the updating data. received and proceeds to their writing in internal memory.

Dans un deuxième exemple de réalisation, en référence à la figure 2, l'installation de télé-relève comprend six terminaux de télé-relève T1 à T6 à mettre à jour et trois points d'accès P1 à P3. Un premier groupe de terminaux de télé-relève T1 à T3 est associé, de manière équivalente à ce qui a été effectué dans l'exemple de réalisation en référence à le figure 2, au premier point d'accès P1, du fait de leur présence dans la zone de portée d'émission ZP1 du point d'accès P1. Cette association permet au premier groupe T1 à T3 de communiquer par liaison radiofréquence avec leur point d'accès associé P1, pour transmettre des données de télé-relève. Un second groupe de terminaux de télé-relève T4 à T6 est associé à un second point d'accès P3. Aussi, selon cet exemple de réalisation, un point d'accès P2 de l'installation n'est associé à aucun terminal de télé-relève T1 à T6 de l'installation, malgré que les terminaux de télé-relève T1 à T6 soient compris dans sa zone de portée d'émission ZP2. Néanmoins le serveur de gestion 1 sélectionne, lors de la sélection des points d'accès servant à la diffusion des données de mise à jour, le point d'accès P2 qui n'est associé à aucun terminal de télé-relève T1 à T6, pour transmettre les données de mise à jour. En effet, du fait que l'ensemble des terminaux de télé-relève T1 à T6 sont compris dans la zone de portée d'émissions ZP2 du terminal P2, l'encombrement du spectre radio est avantageusement réduit lors de l'émission des données de mise à jour, puisque les données de mise à jour peuvent être transmises simultanément à l'ensemble des terminaux de télé-relève T1 à T6 à mettre à jour, en sélectionnant un nombre limité de points d'accès, en l'occurrence un seul point d'accès P2.In a second embodiment, with reference to the figure 2 , the remote metering installation comprises six dial-up terminals T 1 to T 6 to be updated and three access points P 1 to P 3 . A first group of remote polling terminals T 1 to T 3 is associated, in an equivalent manner to that which has been carried out in the exemplary embodiment with reference to FIG. figure 2 at the first access point P 1 because of their presence in the transmission range area Z P1 of the access point P 1 . This association allows the first group T 1 to T 3 to communicate by radiofrequency link with their associated access point P 1 , to transmit data remote reading. A second group of remote polling terminals T 4 to T 6 is associated with a second access point P 3 . Also, according to this exemplary embodiment, an access point P 2 of the installation is associated with no remote access terminal T 1 to T 6 of the installation, despite the fact that the remote-control terminals T 1 at T 6 are included in its zone of emission range Z P2 . Nevertheless, the management server 1 selects, during the selection of the access points used for broadcasting the update data, the access point P 2 which is associated with no remote terminal T 1 to T 6 , to transmit the update data. Indeed, since all the remote-reading terminals T 1 to T 6 are included in the transmission range area Z P2 of the terminal P 2 , the size of the radio spectrum is advantageously reduced during the transmission. transmission of the updating data, since the updating data can be transmitted simultaneously to all the remote reading terminals T 1 to T 6 to be updated, by selecting a limited number of access points, in this case only one access point P 2 .

Il apparait, dans cet exemple de réalisation, qu'un point d'accès de diffusion P2 peut être un point d'accès n'étant associé à aucun terminal T1 à T6 de l'installation. Il apparait, en outre, qu'un point d'accès associé P1 ou P3 à des terminaux de télé-relève T4 à T6 à mettre à jour peut ne pas être sélectionné en tant que point d'accès de diffusion pour diffuser les données de mise à jour.It appears in this embodiment that a broadcast access point P 2 may be an access point not associated with any terminal T 1 to T 6 of the installation. It also appears that an associated access point P 1 or P 3 to remote polling terminals T 4 to T 6 to be updated may not be selected as a broadcast access point for disseminate update data.

Claims (6)

  1. A method of managing a software update of a plurality of remote-reading terminals (T1-T9) to be updated in a remote-reading installation comprising a plurality of access points (P1-P3), said plurality of access points (P1-P3) being designed for communicating by radio link with said plurality of remote-reading terminals (T1-T9) to be updated, and being designed for communicating with a management server (1) of said remote-reading installation by the intermediary of a telecommunication network, each remote-reading terminal (T1-T9) of said plurality of remote-reading terminals (T1-T9) to be updated being associated with an access point access point of said plurality of access points (P1-P3) in order to transmit remote-reading data to said management server (1), the method comprising the steps of:
    (a) transmitting a message for planning reception of update data to said plurality of remote-reading terminals (T1-T9) to be updated by the intermediary of their associated access points, said planning message comprising a start time for the distribution of said update data;
    (b) selecting a set of access points among said plurality of access points (P1-P3) in such a way as to limit the number of access points used for distributing said update data, whilst allowing the reception of said update data by said plurality of remote-reading terminals (T1-T9) to be updated;
    (c) transmitting said update data by said selected set of access points, at said distribution start time;
    the method being characterized in that the selection step (b) comprises the selection of the smallest number of access points making it possible to transmit the updates to all of the remote-reading terminals (T1-T9) to be updated simultaneously, taking account, on the one hand, of the transmission range areas (ZP1, ZP2, ZP3) of the access points (P1-P3) and, on the other hand, of the locations of the remote-reading terminals relative to these transmission range areas, so the transmission range areas (ZP1 ZP2, ZP3) make it possible to cover and reach all of the remote-reading terminals (T1-T9) to be updated.
  2. The management method as claimed in claim 1, characterized in that the selection step (b) comprises the transmission of a message of notification of the selection to each access point of said selected set of access points (P1-P3), said notification message comprising said distribution start time.
  3. The management method as claimed in any one of the preceding claims, characterized in that during the step (a) of transmission of said message for planning the reception of said update data, each terminal of said plurality of remote-reading terminals (T1-T9) to be updated transmits an acknowledgement message to its associated access point, in order to confirm the planning of the reception of said update data at said distribution start time.
  4. The management method as claimed in any one of the preceding claims, characterized in that the step (c) of transmission of said update data by said selected set of access points is carried out several times consecutively.
  5. The management method as claimed in claim 3, characterized in that the step (a) of transmission of said message for planning the reception of said update data is carried out, for each remote-reading terminal of said plurality of remote-reading terminals (T1-T9) to be updated, consecutive to the reception, by its associated access point, of remote-reading data transmitted by said remote-reading terminal.
  6. A remote-reading installation comprising:
    - a management server (1);
    - a plurality of remote-reading terminals (T1-T9) to be updated;
    - a plurality of access points (P1-P3);
    said plurality of access points (P1-P3) being designed for communicating by radio link with said plurality of remote-reading terminals (T1-T9) to be updated, and being designed for communicating with said management server (1) of said remote-reading installation by the intermediary of a telecommunication network, each remote-reading terminal of said plurality of remote-reading terminals (T1-T9) to be updated being associated with an access point of said plurality of access points (P1-P3) for transmitting remote-reading data to the management server (1),
    said management server (1) being designed for controlling the transmission of a message for planning the reception of update data to said plurality of remote-reading terminals (T1-T9) to be updated, by the intermediary of their associated access points, said planning message comprising an update data transmission start time;
    said management server (1) being designed for selecting a set of access points from among said plurality of access points (P1-P3) in such a way as to limit the number of access points used for distributing said update data, whilst allowing the reception of said update data by said plurality of remote-reading terminals (T1-T9) to be updated;
    said set of access points selected by the management server (1) being designed for transmitting said update data at said distribution start time; said remote-reading installation being characterized in that the selection of the set of access points from among said plurality of access points (P1-P3) comprises the selection of the smallest number of access points making it possible to transmit the updates to all of the remote-reading terminals (T1-T9) to be updated simultaneously, taking account, on the one hand, of the transmission range areas (ZP1, ZP2, ZP3) of the access points (P1-P3) and, on the other hand, of the locations of the remote-reading terminals relative to these transmission range areas, so the transmission range areas (ZP1 ZP2, ZP3) make it possible to cover and reach all of the remote-reading terminals (T1-T9) to be updated.
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FR3016031A1 (en) 2015-07-03
US9934023B2 (en) 2018-04-03
ES2740898T3 (en) 2020-02-07
CN106104209B (en) 2018-11-30
PT3087347T (en) 2019-08-21
MA39185B1 (en) 2017-07-31
LT3087347T (en) 2019-08-12
EP3087347A1 (en) 2016-11-02
KR20160113116A (en) 2016-09-28
FR3016031B1 (en) 2016-02-05
KR102246011B1 (en) 2021-04-29
CN106104209A (en) 2016-11-09
US20160306620A1 (en) 2016-10-20
WO2015097406A1 (en) 2015-07-02
PL3087347T3 (en) 2019-12-31
MA39185A1 (en) 2016-11-30

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